ABSTRACT
Maintaining and verifying water quality is important in many environmental applications. The most obvious is in drinking water applications, but industrial and municipal wastewater, natural surface/groundwater, industrial process waters, and closed-loop control systems all require a certain range or maximum concentration of species to operate properly. The amperometric classification of electrical sensors is based on the measurement of current through a working electrode. An empirical relationship can be used to enhance the performance of these electrodes. The conductometric sensors are based on measurements of concentration of a sample due to modulation in conductivity. Conductometric sensors are also available for resistivity, salinity, and temperature measurements.
